Automatic humidifier



July 24, 1934. N. .JAsPl-:RSON

AUTOMATIC HUMIDIFIER Filed April ll, 1932 Patented July V24, 1934 .1,967,824 AUTOMATIC HUMIDIFIER Nickclas Jasperson, Oshkosh, Wis.

:Application April 11, 1932, Serial No. 604,535

1 Claim.

This 'invention refers Lto automatic humiders, and it has for its object to provide a simple, economical device of this type, particularly applicable to furnaces, or the like.

A specific object of my invention is to provide means associated with a water supply tank, whereby the water is maintained at a constant level, the level of the same being shown by a Y, visible indicator.

Another specific object of my invention is to provide a valve carrying bracket adjustably associated with the tank, whereby the water level may be varied.

Another object is to provide, in connection with -the visible gauge, an over-flow pipe, wherein the same is discharged into the ash-pit of a furnace, in the event of valve leakage, it being understood that the water supply is delivered to the tank through suitable plumbing connections.

With the above and other minor objects in view, the invention consists in certain peculiarities of construction and combination of parts as will be hereinafter set forth in the accompanying draw- -ing and subsequently claimed.

In the drawing:

Figure l represents a sectional elevation of a furnace equipped with a humidifier apparatus embodying the features of my invention.

A Figure 2 is an enlarged detailed elevation of a valve carrying bracket and associated float mechanism.

Figure 3 is a face View of the bracket and float mechanism.

Figure 4 is a partly sectional elevation of a valve controlled head which is adapted to be fitted to a water supply pipe, the same being provided with an aperture whereby said fitting can be readily adjusted thereto, and

Figure 5 is an enlarged, detailed, partly sectional elevation of a gauge mechanism embodying one of the features of my invention showing its pipe and over-now connections.

Referring by characters to the drawing, A represents a furnace or heater of any desired ltype, and B the jacket therefor. Mounted upon the top of the furnace is an open tank 1 having a cover 2 secured to its upper edges and spaced therefrom to permit free fiow of air to the water contained in the tank, which will also serve as a guard against dust or soot entering the water.

A water supply pipe 3 is tapped, at any predetermined position, for the reception of a nipple 4, which nipple, as shown in Figure 4 of the drawing, constitutes a part of the valve controlled head. The head 5 is provided with apertured arms 5 for the reception of corresponding arms of a clip 6', this feature being provided for a convenient attaching means for the head, it being understood that the tapered nipple 4 is fitted in the aperture of the pipe 3, and thereafter the parts are rmly seated by drawing up the bolts with which the clip is provided.

The head 5 is also provided with a valve 6, which is particularly designed to cut off the water supply in the event of leakage of the valve 7 which controls the water supply to the tank. The valve 6 is in fiexible pipe connection with the delivery valve 7, which valve is seated in a foot 8 that constitutes a part of an adjustable U-shaped bracket 9. The valve is of standard type and is provided with an actuating stem 10 which is engaged by one end of a rock arm 11, the stem being pivoted to an extension of the foot 8. The rock arm 11 is apertured at its end, and also at its side face 12, for the reception of a clamping screw 13, which carries and supports a float 14. By this attachment to the rock arm, the oat may be predeterminedly adjusted with relation to its elevation by swinging the same upon the clamping screw 13, and thereafter binding said screw, the screw being shown untightened in Figure 2.

It is also understood that the position of this float may be reversed and attached to the aperture 12, previously mentioned. Thus, it will be observed that the float is rendered quite exible as to its adjustment, and attention is also directed to the fact that the bracket 9 can be adjusted up or down with relation to the edge of the tank, whereby the volume of water contained in said tank may be predeterminedly regulated. After such adjustment of the bracket 9, it is held in position by a set screw 9', which engages the outer wall of the tank, as shown.

Extending from the lower portion of the tank 1 is a pipe 15, which projects beyond the furnace jacket, and, as best shown in Figure 5 of the drawing, it communicates with the bottom of a cylinder 16. The cylinder 16 carries a piston oating head 17 and a piston rod 17', which rod slides in a visible gauge housing 18, whereby the height of the water line in the tank is at all times visible. The cylinder and piston are so arranged, in this instance, to indicate empty when the tank is approximately one-third full of water, so that the operator will have ample time to make the necessary repairs to the valves before the water in the tank is completely evaporated. The bottom of the cylinder 16 has secured thereto an open overflow pan 19, which pan is connected by a pipeI 2'0 With the ash-pit of the furnace, as indicated in Figure 1 of the drawing. Thus, should any water leak past the piston and out of the cylinder or gauge housing 18, the same Will be caught by the drip pan.

From the foregoing description, it will be observed that in the event of leakage of the valves which control the supply of water to the tank, the over-flow, vdue lto said leakage, is avoided, due to the 4fact 'thattlre Waterl Will thus rise in the cylinder 16 and over-o'vv said'cylinder in'to the pan 19, from Which pan it will be passed into the ash-pit, as indicated. Thus, at all times the danger of over-ow is eliminated, due to this automatic arrangement, and it is further under; stood that a constant water level is maintained in the tank, irrespective of the rate' of evapora# tion.

While I have shown and described one simple exemplication of my invention, it is understood that I may vary the structural features of it within the scope of the claim, as it may be hereinafter interpreted by those skilled in the art.

I claim:-

In an automatic humidier for furnaces and the like, a tank, means for supplying water to the tank, a gauge including a cylinder, a graduated gauge sleeve, a piston .slidable in the cylinder, a piston rod connected With the piston movable in the gauge sleeve, a pipe connecting the tank with the lower end of the cylinder, an overflow pan carried by the cylinder and arranged 'eiiteri'o'rly thereof, and an overflow pipe communicating with the overflow pan.

NICKOLAS J ASPERSON.

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